kernel-ark/include/linux/mfd/rtsx_common.h
Wei WANG ab4e8f8b7b mfd: rtsx: Add clock divider hook
Add callback function conv_clk_and_div_n to convert between SSC clock
and its divider N.
For rtl8411, the formula to calculate SSC clock divider N is different
with the other card reader models.

Signed-off-by: Wei WANG <wei_wang@realsil.com.cn>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-27 01:30:20 +01:00

52 lines
1.5 KiB
C

/* Driver for Realtek driver-based card reader
*
* Copyright(c) 2009 Realtek Semiconductor Corp. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, see <http://www.gnu.org/licenses/>.
*
* Author:
* Wei WANG <wei_wang@realsil.com.cn>
* No. 450, Shenhu Road, Suzhou Industry Park, Suzhou, China
*/
#ifndef __RTSX_COMMON_H
#define __RTSX_COMMON_H
#define DRV_NAME_RTSX_PCI "rtsx_pci"
#define DRV_NAME_RTSX_PCI_SDMMC "rtsx_pci_sdmmc"
#define DRV_NAME_RTSX_PCI_MS "rtsx_pci_ms"
#define RTSX_REG_PAIR(addr, val) (((u32)(addr) << 16) | (u8)(val))
#define RTSX_SSC_DEPTH_4M 0x01
#define RTSX_SSC_DEPTH_2M 0x02
#define RTSX_SSC_DEPTH_1M 0x03
#define RTSX_SSC_DEPTH_500K 0x04
#define RTSX_SSC_DEPTH_250K 0x05
#define RTSX_SD_CARD 0
#define RTSX_MS_CARD 1
#define CLK_TO_DIV_N 0
#define DIV_N_TO_CLK 1
struct platform_device;
struct rtsx_slot {
struct platform_device *p_dev;
void (*card_event)(struct platform_device *p_dev);
};
#endif